Cowboys welcome back defensive end Anthony Spencer from knee injury for game at Kansas City

The Kansas City Chiefs were without nickel back Dunta Robinson against Tony Romo and the Dallas Cowboys on Sunday after he missed practice all week due to a personal matter.

Robinson was inactive along with rookie linebacker Nico Johnson, who has been dealing with a high ankle sprain. The other inactive Chiefs were quarterback Tyler Bray, center Eric Kush, wide receiver Chad Hall, linebacker Josh Martin and defensive lineman Jaye Howard.

Cowboys defensive end Anthony Spencer, who had knee surgery in July, was active after missing last week's win over the Giants. He practiced for the first time since July 21 on Wednesday.

Ernie Sims, who's been dealing with a groin injury, was not available for the game. The other inactive Cowboys were wide receiver Cole Beasley, running back Joseph Randle, offensive guard David Arkin, offensive tackle Darrion Weems, tight end Andre Smith and defensive end Caesar Rayford.